田间开放式增温对东北水稻氮素利用的影响

阮俊梅, 张俊, 刘猷红, 董文军, 孟英, 邓艾兴, 杨万深, 宋振伟, 张卫建

Effects of free air temperature increase on nitrogen utilization of rice in northeastern China

RUAN Jun-Mei, ZHANG Jun, LIU You-Hong, DONG Wen-Jun, MENG Ying, DENG Ai-Xing, YANG Wan-Shen, SONG Zhen-Wei, ZHANG Wei-Jian

表6 增温对肥料氮素在水稻植株分配的影响

Table 6 Effects of warming on fertilizer nitrogen allocation in rice plant

年份 Year	处理 Treatment	植株不同部位氮素吸收量 N uptake in different parts of the plant (g m^-2)			植株不同部位氮素吸收量占比 Ratio of N uptake in different parts of the plant (%)
年份 Year	处理 Treatment	根系Root	秸秆Straw	籽粒Grain	根系Root	秸秆Straw	籽粒Grain
2019	对照CK	0.24±0.03 a	1.01±0.02 a	1.89±0.03 a	7.69±0.76 a	32.31±1.04 b	60.00±0.32 a
2019	增温W	0.20±0.01 a	1.05±0.06 a	1.44±0.01 b	7.50±0.49 a	38.85±1.54 a	53.66±1.06 b
2020	对照CK	0.17±0.01 a	0.86±0.01 a	2.07±0.06 a	5.45±0.12 a	27.76±0.26 a	66.79±0.46 a
2020	增温W	0.16±0.02 a	0.76±0.03 a	1.85±0.02 b	5.79±0.46 a	27.50±0.50 a	66.71±0.95 a